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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef MEDIA_BLINK_CDM_SESSION_ADAPTER_H_ | 5 #ifndef MEDIA_BLINK_CDM_SESSION_ADAPTER_H_ |
| 6 #define MEDIA_BLINK_CDM_SESSION_ADAPTER_H_ | 6 #define MEDIA_BLINK_CDM_SESSION_ADAPTER_H_ |
| 7 | 7 |
| 8 #include <stdint.h> | 8 #include <stdint.h> |
| 9 | 9 |
| 10 #include <map> | 10 #include <map> |
| 11 #include <string> | 11 #include <string> |
| 12 #include <vector> | 12 #include <vector> |
| 13 | 13 |
| 14 #include "base/containers/hash_tables.h" | 14 #include "base/containers/hash_tables.h" |
| 15 #include "base/macros.h" | 15 #include "base/macros.h" |
| 16 #include "base/memory/ref_counted.h" | 16 #include "base/memory/ref_counted.h" |
| 17 #include "base/memory/weak_ptr.h" | 17 #include "base/memory/weak_ptr.h" |
| 18 #include "media/base/media_keys.h" | 18 #include "media/base/content_decryption_module.h" |
| 19 #include "third_party/WebKit/public/platform/WebContentDecryptionModuleResult.h" | 19 #include "third_party/WebKit/public/platform/WebContentDecryptionModuleResult.h" |
| 20 #include "third_party/WebKit/public/platform/WebContentDecryptionModuleSession.h
" | 20 #include "third_party/WebKit/public/platform/WebContentDecryptionModuleSession.h
" |
| 21 | 21 |
| 22 class GURL; | 22 class GURL; |
| 23 | 23 |
| 24 namespace media { | 24 namespace media { |
| 25 | 25 |
| 26 struct CdmConfig; | 26 struct CdmConfig; |
| 27 class CdmFactory; | 27 class CdmFactory; |
| 28 class WebContentDecryptionModuleSessionImpl; | 28 class WebContentDecryptionModuleSessionImpl; |
| 29 | 29 |
| 30 // Owns the CDM instance and makes calls from session objects to the CDM. | 30 // Owns the CDM instance and makes calls from session objects to the CDM. |
| 31 // Forwards the session ID-based callbacks of the MediaKeys interface to the | 31 // Forwards the session ID-based callbacks of the ContentDecryptionModule |
| 32 // appropriate session object. Callers should hold references to this class | 32 // interface to the appropriate session object. Callers should hold references |
| 33 // as long as they need the CDM instance. | 33 // to this class as long as they need the CDM instance. |
| 34 class CdmSessionAdapter : public base::RefCounted<CdmSessionAdapter> { | 34 class CdmSessionAdapter : public base::RefCounted<CdmSessionAdapter> { |
| 35 public: | 35 public: |
| 36 CdmSessionAdapter(); | 36 CdmSessionAdapter(); |
| 37 | 37 |
| 38 // Creates the CDM for |key_system| using |cdm_factory| and returns the result | 38 // Creates the CDM for |key_system| using |cdm_factory| and returns the result |
| 39 // via |result|. | 39 // via |result|. |
| 40 void CreateCdm( | 40 void CreateCdm( |
| 41 CdmFactory* cdm_factory, | 41 CdmFactory* cdm_factory, |
| 42 const std::string& key_system, | 42 const std::string& key_system, |
| 43 const GURL& security_origin, | 43 const GURL& security_origin, |
| (...skipping 17 matching lines...) Expand all Loading... |
| 61 const std::string& session_id, | 61 const std::string& session_id, |
| 62 base::WeakPtr<WebContentDecryptionModuleSessionImpl> session); | 62 base::WeakPtr<WebContentDecryptionModuleSessionImpl> session); |
| 63 | 63 |
| 64 // Removes a session from the internal map. | 64 // Removes a session from the internal map. |
| 65 void UnregisterSession(const std::string& session_id); | 65 void UnregisterSession(const std::string& session_id); |
| 66 | 66 |
| 67 // Initializes a session with the |init_data_type|, |init_data| and | 67 // Initializes a session with the |init_data_type|, |init_data| and |
| 68 // |session_type| provided. | 68 // |session_type| provided. |
| 69 void InitializeNewSession(EmeInitDataType init_data_type, | 69 void InitializeNewSession(EmeInitDataType init_data_type, |
| 70 const std::vector<uint8_t>& init_data, | 70 const std::vector<uint8_t>& init_data, |
| 71 MediaKeys::SessionType session_type, | 71 ContentDecryptionModule::SessionType session_type, |
| 72 std::unique_ptr<NewSessionCdmPromise> promise); | 72 std::unique_ptr<NewSessionCdmPromise> promise); |
| 73 | 73 |
| 74 // Loads the session specified by |session_id|. | 74 // Loads the session specified by |session_id|. |
| 75 void LoadSession(MediaKeys::SessionType session_type, | 75 void LoadSession(ContentDecryptionModule::SessionType session_type, |
| 76 const std::string& session_id, | 76 const std::string& session_id, |
| 77 std::unique_ptr<NewSessionCdmPromise> promise); | 77 std::unique_ptr<NewSessionCdmPromise> promise); |
| 78 | 78 |
| 79 // Updates the session specified by |session_id| with |response|. | 79 // Updates the session specified by |session_id| with |response|. |
| 80 void UpdateSession(const std::string& session_id, | 80 void UpdateSession(const std::string& session_id, |
| 81 const std::vector<uint8_t>& response, | 81 const std::vector<uint8_t>& response, |
| 82 std::unique_ptr<SimpleCdmPromise> promise); | 82 std::unique_ptr<SimpleCdmPromise> promise); |
| 83 | 83 |
| 84 // Closes the session specified by |session_id|. | 84 // Closes the session specified by |session_id|. |
| 85 void CloseSession(const std::string& session_id, | 85 void CloseSession(const std::string& session_id, |
| 86 std::unique_ptr<SimpleCdmPromise> promise); | 86 std::unique_ptr<SimpleCdmPromise> promise); |
| 87 | 87 |
| 88 // Removes stored session data associated with the session specified by | 88 // Removes stored session data associated with the session specified by |
| 89 // |session_id|. | 89 // |session_id|. |
| 90 void RemoveSession(const std::string& session_id, | 90 void RemoveSession(const std::string& session_id, |
| 91 std::unique_ptr<SimpleCdmPromise> promise); | 91 std::unique_ptr<SimpleCdmPromise> promise); |
| 92 | 92 |
| 93 // Returns a reference to the CDM. | 93 // Returns a reference to the CDM. |
| 94 scoped_refptr<MediaKeys> GetCdm(); | 94 scoped_refptr<ContentDecryptionModule> GetCdm(); |
| 95 | 95 |
| 96 // Returns the key system name. | 96 // Returns the key system name. |
| 97 const std::string& GetKeySystem() const; | 97 const std::string& GetKeySystem() const; |
| 98 | 98 |
| 99 // Returns a prefix to use for UMAs. | 99 // Returns a prefix to use for UMAs. |
| 100 const std::string& GetKeySystemUMAPrefix() const; | 100 const std::string& GetKeySystemUMAPrefix() const; |
| 101 | 101 |
| 102 private: | 102 private: |
| 103 friend class base::RefCounted<CdmSessionAdapter>; | 103 friend class base::RefCounted<CdmSessionAdapter>; |
| 104 | 104 |
| 105 // Session ID to WebContentDecryptionModuleSessionImpl mapping. | 105 // Session ID to WebContentDecryptionModuleSessionImpl mapping. |
| 106 typedef base::hash_map<std::string, | 106 typedef base::hash_map<std::string, |
| 107 base::WeakPtr<WebContentDecryptionModuleSessionImpl> > | 107 base::WeakPtr<WebContentDecryptionModuleSessionImpl> > |
| 108 SessionMap; | 108 SessionMap; |
| 109 | 109 |
| 110 ~CdmSessionAdapter(); | 110 ~CdmSessionAdapter(); |
| 111 | 111 |
| 112 // Callback for CreateCdm(). | 112 // Callback for CreateCdm(). |
| 113 void OnCdmCreated(const std::string& key_system, | 113 void OnCdmCreated(const std::string& key_system, |
| 114 base::TimeTicks start_time, | 114 base::TimeTicks start_time, |
| 115 const scoped_refptr<MediaKeys>& cdm, | 115 const scoped_refptr<ContentDecryptionModule>& cdm, |
| 116 const std::string& error_message); | 116 const std::string& error_message); |
| 117 | 117 |
| 118 // Callbacks for firing session events. | 118 // Callbacks for firing session events. |
| 119 void OnSessionMessage(const std::string& session_id, | 119 void OnSessionMessage(const std::string& session_id, |
| 120 MediaKeys::MessageType message_type, | 120 ContentDecryptionModule::MessageType message_type, |
| 121 const std::vector<uint8_t>& message); | 121 const std::vector<uint8_t>& message); |
| 122 void OnSessionKeysChange(const std::string& session_id, | 122 void OnSessionKeysChange(const std::string& session_id, |
| 123 bool has_additional_usable_key, | 123 bool has_additional_usable_key, |
| 124 CdmKeysInfo keys_info); | 124 CdmKeysInfo keys_info); |
| 125 void OnSessionExpirationUpdate(const std::string& session_id, | 125 void OnSessionExpirationUpdate(const std::string& session_id, |
| 126 base::Time new_expiry_time); | 126 base::Time new_expiry_time); |
| 127 void OnSessionClosed(const std::string& session_id); | 127 void OnSessionClosed(const std::string& session_id); |
| 128 | 128 |
| 129 // Helper function of the callbacks. | 129 // Helper function of the callbacks. |
| 130 WebContentDecryptionModuleSessionImpl* GetSession( | 130 WebContentDecryptionModuleSessionImpl* GetSession( |
| 131 const std::string& session_id); | 131 const std::string& session_id); |
| 132 | 132 |
| 133 void ReportTimeToCreateCdmUMA(base::TimeDelta cdm_creation_time) const; | 133 void ReportTimeToCreateCdmUMA(base::TimeDelta cdm_creation_time) const; |
| 134 | 134 |
| 135 scoped_refptr<MediaKeys> cdm_; | 135 scoped_refptr<ContentDecryptionModule> cdm_; |
| 136 | 136 |
| 137 SessionMap sessions_; | 137 SessionMap sessions_; |
| 138 | 138 |
| 139 std::string key_system_; | 139 std::string key_system_; |
| 140 std::string key_system_uma_prefix_; | 140 std::string key_system_uma_prefix_; |
| 141 | 141 |
| 142 // A unique ID to trace CdmSessionAdapter::CreateCdm() call and the matching | 142 // A unique ID to trace CdmSessionAdapter::CreateCdm() call and the matching |
| 143 // OnCdmCreated() call. | 143 // OnCdmCreated() call. |
| 144 uint32_t trace_id_; | 144 uint32_t trace_id_; |
| 145 | 145 |
| 146 std::unique_ptr<blink::WebContentDecryptionModuleResult> cdm_created_result_; | 146 std::unique_ptr<blink::WebContentDecryptionModuleResult> cdm_created_result_; |
| 147 | 147 |
| 148 // NOTE: Weak pointers must be invalidated before all other member variables. | 148 // NOTE: Weak pointers must be invalidated before all other member variables. |
| 149 base::WeakPtrFactory<CdmSessionAdapter> weak_ptr_factory_; | 149 base::WeakPtrFactory<CdmSessionAdapter> weak_ptr_factory_; |
| 150 | 150 |
| 151 DISALLOW_COPY_AND_ASSIGN(CdmSessionAdapter); | 151 DISALLOW_COPY_AND_ASSIGN(CdmSessionAdapter); |
| 152 }; | 152 }; |
| 153 | 153 |
| 154 } // namespace media | 154 } // namespace media |
| 155 | 155 |
| 156 #endif // MEDIA_BLINK_CDM_SESSION_ADAPTER_H_ | 156 #endif // MEDIA_BLINK_CDM_SESSION_ADAPTER_H_ |
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